[Bug 31563] New: Problem with an usb-serial card reader

http://bugs.winehq.org/show_bug.cgi?id=31563

Bug #: 31563
           Summary: Problem with an usb-serial card reader
           Product: Wine
           Version: 1.5.11
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ntdll
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

I would  like to use a cards reader (twin30
http://medprice.fr/lecteur-carte-vitale-fixe/lecteur-sesam-vitale-twin30-usb...)
on linux with a windows programm.
The cards reader is a native serial device but it solds with a USB-serial
converter.

For testing the cards reader, i use a little programme named cpgesw32.exe.
On windows, it works.
On linux, it works with the equivalent program for linux.
So my card reader works on linux.

Now i want testing my cards reader with cpgesw32.exe on linux with wine.
The cards reader freeze after several seconds.

So i look the source code of wine.

The freeze of the device happens with the  command
KERNEL32.WriteFile(0000004c,0033f2a4,00000009,0033f13c,00000000).

To continue, i used an usb sniffer. Before the freeze, the cpgesw32's program
call several command :
KERNEL32.GetCommState(0000004c,003552c0)
KERNEL32.SetCommState(0000004c,003552c0)
KERNEL32.GetCommTimeouts(0000004c,0033f8f8)
and others.

When KERNEL32.GetCommState(0000004c,003552c0) is called, the wine programm
launch :
- get_baud_rate
- get_line_control
- get_hand_flow
- get_special_chars

With the sniffer, i noticed that only the first command (get_baud_rate)
transmit a packet on the usb. After that, nothing on the usb port before the
WriteFile.

I noticed that if i open a connexion with my serial-usb device, only one
command works. If i want a second command, i need to close the conexion and
reopen it.

I suppose this is the object of the "server_get_unix_fd" function for wine.

So,

- is everyserial device works like that (one command by connexion) or is it
only my device ?
- is someone can help me on the  "server_get_unix_fd" function ?

Thank you and sorry for my english (french speaker).

Matteli